718864739493 has 8 divisors (see below), whose sum is σ = 974731850400. Its totient is φ = 471120394128.

The previous prime is 718864739473. The next prime is 718864739539. The reversal of 718864739493 is 394937468817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 718864739493 - 2⁹ = 718864738981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718864739443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030691178 + ... + 2030691531.

It is an arithmetic number, because the mean of its divisors is an integer number (121841481300).

Almost surely, 2^718864739493 is an apocalyptic number.

It is an amenable number.

718864739493 is a deficient number, since it is larger than the sum of its proper divisors (255867110907).

718864739493 is a wasteful number, since it uses less digits than its factorization.

718864739493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061382771.

The product of its digits is 219469824, while the sum is 69.

The spelling of 718864739493 in words is "seven hundred eighteen billion, eight hundred sixty-four million, seven hundred thirty-nine thousand, four hundred ninety-three".